https://www.simonsfoundation.org/annual-reports/ https://www.simonsfoundation.org/annual-reports/ Anecdata: a lot of bleeding edge stuff has been funded by SF

https://www.simonsfoundation.org/annual-reports/ https://www.simonsfoundation.org/annual-reports/ Anecdata: a lot of bleeding edge stuff has been funded by SF not NSF. They also do a lot of shortterm "Collaborations", something not quite done by NSF https://www.simonsfoundation.org/grant/simons-collaborations-in-mathematics-and-the-physical-sciences/ https://www.simonsfoundation.org/grant/simons-collaborations... https://hiddensymmetries.princeton.edu/ https://hiddensymmetries.princeton.edu/